A progress (A) has been made (B) toward finding (C) a cure for (D) bird flu. 

Câu hỏi :

A progress (A) has been made (B) toward finding (C) a cure for (D) bird flu. 

A A progress

B has been made

C finding 

D for 

* Đáp án

A

* Hướng dẫn giải

Phương pháp giải:

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